Tech Projects

YJ Rehab (Part 2): Rebuilding Drum Brakes (Yes, Drum Brakes) on Our Jeep YJ Project
Tech / Tech Projects / Uncategorized

YJ Rehab (Part 2): Rebuilding Drum Brakes (Yes, Drum Brakes) on Our Jeep YJ Project

In Part One of YJ Rehab, we showed you how to restore the suspension and upgrade the fuel system on a 1994 Jeep Wrangler Sahara. In this exciting episode, we’ll […]

Street Ultra 582: Hardcore Horsepower’s 805 HP Pump Gas Big Chevy
Tech / Tech Projects

Street Ultra 582: Hardcore Horsepower’s 805 HP Pump Gas Big Chevy

Back in 1999, Mike Petralia at Hardcore Horsepower & Dyno Shop in Franklin, TN built a 556-cubic-inch big block Chevy test mule for Hot Rod magazine. That engine made 790 horsepower […]

One 323 cubic inch 2V waiting for its turn on the dyno. The intake is a Trick Flow Track Heat EFI manifold. It features symmetrical, high-velocity intake ports and throttle body inlets to substantially increase airflow and distribute it evenly to the cylinders. The powerband is 3,500 to 8,000-plus RPM. The throttled body is a factory 4-Valve Cobra unit. The valve covers are Trick Flow cast aluminum.
Tech / Tech Projects

Coyote Alternative: Trick Flow Gets 466 HP Out of a Ford 2V Mod Motor!

Everybody that has Ford blue running through their veins loves the 5.0L Coyote. And with good reason—a production Coyote makes 435 horsepower and 400 ft.-lbs. of torque, and they’re readily […]

YJ Rehab (Part 1): Rebuilding a Jeep YJ Chassis
Tech / Tech Projects

YJ Rehab (Part 1): Rebuilding a Jeep YJ Chassis

OnAllCylinders readers might remember when we began our 70,000-mile 1994 Jeep Wrangler Sahara project by giving it a frame-off restoration by stripping and recoating the frame with KBS products. That was a while […]

Our Nighthawk LS on Gressman Powersports’ Superflow engine dyno.
Tech / Tech Projects

Back in Black Nighthawk LS (Part 3): 629 Horsepower from a 408 LS Engine!

Editor’s Note: Mike Mavrigian’s shop, Birchwood Automotive, specializes in street performance and racing engines as well as vehicle restoration. We covered his last build, a 499 cubic inch Mopar 400 […]

It’s mounted and ready to hook up. Some states no longer allow a tow bar to be mounted and secured upright while driving the Jeep on roads and highways, so I remove it for storage between trips.
Product Installs / Tech / Tech Projects

Flat Towing Tech: The Hows and Whys of Installing a Tow Bar

It’s time to hit the highway for a little summer adventure. Our getaways often include four-wheeling on new and distant trails, and that means towing our Jeep behind a motorhome or some other tow […]

Our custom valley plate was machined from .250” thick 6061 billet stock. Unlike the OEM cover, the plate runs flush front and rear. The casting depressions at the front top of the block were filled with All-Metal body filler to create a flush-front block area.
Tech / Tech Projects

Back in Black Nighthawk LS (Part 2): Heads, Valvetrain, Oiling System & More

Editor’s Note: Mike Mavrigian’s shop, Birchwood Automotive, specializes in street performance and racing engines as well as vehicle restoration. We covered his last build, a 499 cubic inch Mopar 400 big […]

Here's the 438 dressed in dyno trim, without an alternator.
Tech / Tech Projects

The Wonder Windsor: Hardcore Horsepower’s 735 HP Small Block Ford

Mike Petralia, owner and chief bottle washer at Hardcore Horsepower & Dyno in Franklin, TN, is no stranger to hot small block Ford builds. So when it came time to […]

Back in Black Nighthawk LS Engine Build (Part 1): The Short Block
Tech / Tech Projects

Back in Black Nighthawk LS Engine Build (Part 1): The Short Block

Editor’s Note: Mike Mavrigian’s shop, Birchwood Automotive, specializes in street performance and racing engines as well as vehicle restoration. We covered his last build, a 499 cubic inch Mopar 400 […]

We fast-forwarded a little to show off the custom-mix PPG Deltron Starlight Blue Metallic stripes with the cool ghost stars. Those stars show up in the number roundels too.
Featured Vehicles / Tech / Tech Projects

The Valkyrie Project: Restoring a Road Race 1969 AMX

It’s not every day you run across a bona fide race warrior tucked away in a barn or shed, especially if that warrior is an American Motors product. But that’s […]